GB360289A - Improvements in or relating to heterodyne systems suitable for use in wireless reception - Google Patents

Improvements in or relating to heterodyne systems suitable for use in wireless reception

Info

Publication number
GB360289A
GB360289A GB3345/31A GB334531A GB360289A GB 360289 A GB360289 A GB 360289A GB 3345/31 A GB3345/31 A GB 3345/31A GB 334531 A GB334531 A GB 334531A GB 360289 A GB360289 A GB 360289A
Authority
GB
United Kingdom
Prior art keywords
circuit
aerial
potential
oscillations
effected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3345/31A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of GB360289A publication Critical patent/GB360289A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/06—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes
    • H03D7/08—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes the signals to be mixed being applied between the same two electrodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
    • H04B15/06—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder by local oscillators of receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
GB3345/31A 1930-01-31 1931-02-02 Improvements in or relating to heterodyne systems suitable for use in wireless reception Expired GB360289A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US424792A US1997393A (en) 1930-01-31 1930-01-31 Autodyne circuit

Publications (1)

Publication Number Publication Date
GB360289A true GB360289A (en) 1931-11-05

Family

ID=23683887

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3345/31A Expired GB360289A (en) 1930-01-31 1931-02-02 Improvements in or relating to heterodyne systems suitable for use in wireless reception

Country Status (3)

Country Link
US (1) US1997393A (enrdf_load_html_response)
GB (1) GB360289A (enrdf_load_html_response)
NL (1) NL31542C (enrdf_load_html_response)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2808505A (en) * 1953-01-12 1957-10-01 Telefunken Gmbh Constant-gain amplifier system
US2432183A (en) * 1940-09-11 1947-12-09 Hartford Nat Bank & Trust Co Frequency converter system
BE488964A (enrdf_load_html_response) * 1948-05-11
US2737580A (en) * 1949-02-16 1956-03-06 Hartford Nat Bank & Trust Co Mixing circuit for superheterodyne receivers
US2631229A (en) * 1949-08-05 1953-03-10 Frank O Chesus Oscillator-mixer circuit with single triode tube
DE1001350B (de) * 1952-05-23 1957-01-24 Telefunken Gmbh Schaltungsanordnung zur Verminderung der Ausstrahlung von Oszillatorschwingungen, insbesondere beim Ultrakurzwellen-Empfang
US2757287A (en) * 1953-07-17 1956-07-31 Rca Corp Stabilized semi-conductor oscillator circuit

Also Published As

Publication number Publication date
NL31542C (enrdf_load_html_response) 1900-01-01
US1997393A (en) 1935-04-09

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